Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Stratigraphy
paleobiology
Neoproterozoic
Cambrian
Ediacaran
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
181
139
0.768
* Total i10 IndexRankings
Ranking Based On Selection :2
Paleontology
Paleobiology
Early Life
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
146
98
0.671
* Total i10 IndexRankings
Ranking Based On Selection :3
Fossil beetles
Mesozoic
Evolution
amber
insects
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
115
84
0.730
* Total i10 IndexRankings
Ranking Based On Selection :4
Geology
Palaeontology
Stratigraphy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
50
0.562
* Total i10 IndexRankings
Ranking Based On Selection :5
paleontology
Ordovician
biostratigraphy
chitinozoan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
63
0.940
* Total i10 IndexRankings
Ranking Based On Selection :6
Carboniferous and Permian foraminifers
ecology
palaeobiogeography
palaeogeography
Tectonic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
49
0.831
* Total i10 IndexRankings
Ranking Based On Selection :7
Carbonate Sedimentology
Deep-time Paleoclimate
Late Paleozoic Ice Age
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
51
0.962
* Total i10 IndexRankings
Ranking Based On Selection :8
Cambrian
Cambrian explosion
evolution
Burgess Shale
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
43
0.935
* Total i10 IndexRankings
Ranking Based On Selection :9
Paleobotany
Palaeobotany
Plant evolution
Botany
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
39
0.907
* Total i10 IndexRankings
Ranking Based On Selection :10
Ordovician & Silurian conodonts
Stratigraphy
Carbonate Sedimentology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
33
0.825
* Total i10 IndexRankings
Ranking Based On Selection :11
Geobiology
Ichnology
Sedimentology
Biotic recovery
Mass Extinctions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
30
0.857
* Total i10 IndexRankings
Ranking Based On Selection :12
palaeontology
palaeoecology
graptolites
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
29
0.829
* Total i10 IndexRankings
Ranking Based On Selection :13
isotope geochemistry
stratigraphy
experimental ecology
paleobiology
Permian
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
25
0.714
* Total i10 IndexRankings
Ranking Based On Selection :14
Palaeontology
Stratigraphy
Ordovician
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
10
0.286
* Total i10 IndexRankings
Ranking Based On Selection :15
Precambrian Geobiology
Animal & Ediacara Fossils
Algal Fossils
Fungal Fossils
Acritarchs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
29
0.853
* Total i10 IndexRankings
Ranking Based On Selection :16
Ediacaran
Cambrian explosion
origin of Metazoa
early life evolution
astrobiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
28
0.903
* Total i10 IndexRankings
Ranking Based On Selection :17
palaeontology
stratigraphy
big data
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
21
0.677
* Total i10 IndexRankings
Ranking Based On Selection :18
Sedimentary Geology
Biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
* Total i10 IndexRankings
Ranking Based On Selection :19
Palynology
Mesozoic
Palaeontology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
26
1.000
* Total i10 IndexRankings
Ranking Based On Selection :20
Palaeontology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
22
0.880
* Total i10 IndexRankings
Ranking Based On Selection :21
Palaeobotany
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
21
0.913
* Total i10 IndexRankings
Ranking Based On Selection :22
Non-marine Cretaceous
Ostracods
biostratigraphy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
20
0.909
* Total i10 IndexRankings
Ranking Based On Selection :23
Palaeontology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
12
0.545
* Total i10 IndexRankings
Ranking Based On Selection :24
Palaeontology
stratigraphy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
* Total i10 IndexRankings
Ranking Based On Selection :25
Paleoclimate
Isotope Geochemistry
Paleoceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Maoyan Zhu/朱茂炎
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
181
139
0.768
Stratigraphy
paleobiology
Neoproterozoic
Cambrian
Ediacaran
Xunlai Yuan (袁训来)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
146
98
0.671
Paleontology
Paleobiology
Early Life
Chenyang Cai, 蔡晨阳
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
115
84
0.730
Fossil beetles
Mesozoic
Evolution
amber
insects
Zhang Yuandong
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
50
0.562
Geology
Palaeontology
Stratigraphy
Yan Liang 梁艳
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
63
0.940
paleontology
Ordovician
biostratigraphy
chitinozoan
Yichun Zhang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
49
0.831
Carboniferous and Permian foraminifers
ecology
palaeobiogeography
palaeogeography
Tectonic
Jitao Chen (陈吉涛)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
51
0.962
Carbonate Sedimentology
Deep-time Paleoclimate
Late Paleozoic Ice Age
Zhao Fangchen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
43
0.935
Cambrian
Cambrian explosion
evolution
Burgess Shale
Gongle Shi|史恭乐, Gong-Le Shi, Shi Gong-Le
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
39
0.907
Paleobotany
Palaeobotany
Plant evolution
Botany
Rongchang Wu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
33
0.825
Ordovician & Silurian conodonts
Stratigraphy
Carbonate Sedimentology
Mao Luo (罗茂)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
30
0.857
Geobiology
Ichnology
Sedimentology
Biotic recovery
Mass Extinctions
Lucy A Muir
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
29
0.829
palaeontology
palaeoecology
graptolites
Wei Wang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
25
0.714
isotope geochemistry
stratigraphy
experimental ecology
paleobiology
Permian
Jun Li
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
10
0.286
Palaeontology
Stratigraphy
Ordovician
Ke Pang (庞科)|Ke Pang, K. Pang, 庞科
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
29
0.853
Precambrian Geobiology
Animal & Ediacara Fossils
Algal Fossils
Fungal Fossils
Acritarchs
Zongjun Yin / 殷宗军|Yin Zongjun
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
28
0.903
Ediacaran
Cambrian explosion
origin of Metazoa
early life evolution
astrobiology
Hong-He Xu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
21
0.677
palaeontology
stratigraphy
big data
Xianguo Lang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
Sedimentary Geology
Biogeochemistry
Liqin Li 李丽琴
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
26
1.000
Palynology
Mesozoic
Palaeontology
He Wang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
22
0.880
Mingli Wan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
21
0.913
Yaqiong Wang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
20
0.909
Non-marine Cretaceous
Ostracods
biostratigraphy
Kui Yan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
12
0.545
Guangxu Wang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
Tao Li
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Paleoclimate
Isotope Geochemistry
Paleoceanography